The Entropian Hive existed as an asteroid within the Mid Rim Territories. Its location was along a hyperspace route connecting the Mid Rim planet Cerea with Lutrillia, a world in the Outer Rim. This asteroid functioned as a black market trading outpost, with governance by the Entropian Hive Trading Council. Caern Adan dispatched Yrica Quell to the Entropian Hive with the mission of enlisting Nath Tensent, a one-time Rebel Alliance pilot, to serve in the New Republic.
The 2019 novel Alphabet Squadron, penned by Alexander Freed, marked the initial appearance of the Entropian Hive. In developing this setting, Freed aimed to design a "sleazy cantina"-esque environment where Yrica Quell could encounter Nath Tensent, while also capturing the distinctive atmosphere of the post-Battle of Endor era.